We have an update on the case of Yoshiyuki Hattori, the Japanese endocrinologist who has had a half-dozen papers retracted because of issues involving reused data. We’ve reported on some of those retractions, and report on three new ones here.

As a trainee, Hattori spent some time in England, where he met Steven Gross, a prominent pharmacology researcher at Cornell. Gross was impressed with the young physician-scientist, and invited him back to his New York City laboratory to do a postdoc.

At least four retractions have appeared involving the work of a group of Japanese researchers who appear to have reused figures — and doctored them — in multiple manuscripts.

The authors, led by Yoshiyuki Hattori, of Dokkyo University School of Medicine in Mibu (whose motto, by the way, is “where character is developed through learning” a reader points out that we had the wrong Dokkyo initially), published the same figure twice, and in the same year, in the Journal of Cardiovascular Pharmacology and Biochimica et Biophysica Acta.